### Home > MC2 > Chapter 6 > Lesson 6.1.2 > Problem6-17

6-17.

Simplify the following expressions.

1. $–5 + 2(8-12)$

Use the order of operations.

First simplify the terms in parentheses, then simplify any exponents, terms that are multiplied or divided, and finally any terms that are added or subtracted.

$−13$

1. $(–5 + 2)(8-12)$

See part (a).

1. $–5 + 2 · 8-12$

See part (a).

1. $\frac { 1 } { 2 } ( - 6 ) ( 4 + 10 )$

See part (a).

$−42$

1. $- \frac { 2 } { 3 } \cdot 6 + 15 \div ( - 3 )$

See part (a).

$−9$

1. $(7-2)^2 – 5 ÷ 5$

See part (a).